油藏物理学一地层水的高压物性 2.Compressibility of formation water a.if T is constant,,P↑，Cw↓ b.if P is constant,T↑，Cx↑ c.if T and P are constant,R↑，Cw↑ Generally,Cw is from 3.7X 10-4/MPa to 5.0X10 4/Mpa.油藏物理学——地层水的高压物性 2. Compressibility of formation water a. if T is constant, P ↑ ，Cw ↓ T w w w P V V C ( ) 1     b. if P is constant, T ↑ ，Cw ↑ c. if T and P are constant, R↑ ，Cw ↑ Generally, Cw is from 3.7×10-4/MPa to 5.0×10- 4/Mpa